Which has more volume, a liter or a quart?
a. A liter
b. A quart
c. Both are the same
d. Neither describes volume
a
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Evaluate the Prandtl number from the data below
GIVEN
FIND
The Prandtl number (Pr)
Which one of the following statements is true?
A. Temperatures differing by 25? on the Fahrenheit scale must differ by 45? on the Celsius scale B. 40 K corresponds to ?40? C C. Temperatures which differ by 10? on the Celsius scale must differ by 18? on the Fahrenheit scale D. Water at 90? C is warmer than water at 202? F E. 0? F corresponds to ?32? C
In what ways might a country's nuclear power industry assist that country in obtaining nuclear weapons?
A) by enriching uranium. B) by providing the knowledge that is essential to building nuclear weapons C) by producing plutonium in nuclear reactors D) All of the above. E) Actually, there is little connection between nuclear power and nuclear weapons.
A proton moving at 3 × 10^4 m/s is projected at an angle of 30° above a horizontal plane. If an electric field of 400 N/C is directed downwards, how long does it take the proton to return to the horizontal plane? (HINT: Ignore gravity.) [mProton = 1.67 × 10^?27 kg, qProton = +1.6 × 10^?19 C.]